Partial and macroscopic phase coherences in an underdoped Bi2Sr2CaCu2O8+δ thin film

H. Murakami, Toshihiko Kiwa, N. Kida, M. Tonouchi, T. Uchiyama, I. Iguchi, Z. Wang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A combined study using the time-resolved pump-probe technique and the time domain terahertz transmission spectroscopy has been carried out to investigate the normal-state anomalies in underdoped Bi2Sr2CaCu2O8+δ. It was observed that a superconducting gap and a pseudogap coexist in the superconducting state. The pseudogap locally evolves below T* ≃ 210 K simultaneously with the appearance of partial phase coherence with a short lifetime less than 1 ps. With decreasing temperature, the domains with a pseudogap developed and saturated at TS ∼ 95 K, and the frequency-dependent superconductivity fluctuation appeared as cooperative phenomena among the partial phase-coherent domains. These experimental data show that the development of the partial coherent local domains with a pseudogap has an important role to switch from the partial to the macroscopic phase-coherent state.

Original languageEnglish
Pages (from-to)288-294
Number of pages7
JournalEPL
Volume60
Issue number2
DOIs
Publication statusPublished - Oct 2002
Externally publishedYes

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phase coherence
thin films
superconductivity
switches
pumps
anomalies
life (durability)
probes
spectroscopy
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Murakami, H., Kiwa, T., Kida, N., Tonouchi, M., Uchiyama, T., Iguchi, I., & Wang, Z. (2002). Partial and macroscopic phase coherences in an underdoped Bi2Sr2CaCu2O8+δ thin film. EPL, 60(2), 288-294. https://doi.org/10.1209/epl/i2002-00349-x

Partial and macroscopic phase coherences in an underdoped Bi2Sr2CaCu2O8+δ thin film. / Murakami, H.; Kiwa, Toshihiko; Kida, N.; Tonouchi, M.; Uchiyama, T.; Iguchi, I.; Wang, Z.

In: EPL, Vol. 60, No. 2, 10.2002, p. 288-294.

Research output: Contribution to journalArticle

Murakami, H, Kiwa, T, Kida, N, Tonouchi, M, Uchiyama, T, Iguchi, I & Wang, Z 2002, 'Partial and macroscopic phase coherences in an underdoped Bi2Sr2CaCu2O8+δ thin film', EPL, vol. 60, no. 2, pp. 288-294. https://doi.org/10.1209/epl/i2002-00349-x
Murakami, H. ; Kiwa, Toshihiko ; Kida, N. ; Tonouchi, M. ; Uchiyama, T. ; Iguchi, I. ; Wang, Z. / Partial and macroscopic phase coherences in an underdoped Bi2Sr2CaCu2O8+δ thin film. In: EPL. 2002 ; Vol. 60, No. 2. pp. 288-294.
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